又是一幫農民想造飛機，1.知道人家在研發的投入嗎？有錢嗎？2.知道人家的核心技術嗎？

來源: Goodman 於 2014-04-12 22:17:05 [舊帖] [給我悄悄話] 本文已被閱讀：次

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